1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iommu/qcom,
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Qualcomm TBU (Translation Buffer Unit)
8
9 maintainers:
10 - Georgi Djakov <quic_c_gdjako@quicinc.com>
11
12 description:
13 The Qualcomm SMMU500 implementation consists
14 a Translation Lookaside Buffer (TLB) that ca
15 debug features to trace and trigger debug tr
16 instances with each client core.
17
18 properties:
19 compatible:
20 enum:
21 - qcom,sc7280-tbu
22 - qcom,sdm845-tbu
23
24 reg:
25 maxItems: 1
26
27 clocks:
28 maxItems: 1
29
30 interconnects:
31 maxItems: 1
32
33 power-domains:
34 maxItems: 1
35
36 qcom,stream-id-range:
37 description: |
38 Phandle of a SMMU device and Stream ID r
39 is assigned by the TBU
40 $ref: /schemas/types.yaml#/definitions/pha
41 items:
42 - items:
43 - description: phandle of a smmu nod
44 - description: stream id base addres
45 - description: stream id size
46
47 required:
48 - compatible
49 - reg
50 - qcom,stream-id-range
51
52 additionalProperties: false
53
54 examples:
55 - |
56 #include <dt-bindings/clock/qcom,gcc-sdm84
57 #include <dt-bindings/interconnect/qcom,ic
58 #include <dt-bindings/interconnect/qcom,sd
59
60 tbu@150e1000 {
61 compatible = "qcom,sdm845-tbu";
62 reg = <0x150e1000 0x1000>;
63 clocks = <&gcc GCC_AGGRE_NOC_PCIE_TBU_
64 interconnects = <&system_noc MASTER_GN
65 &config_noc SLAVE_IME
66 power-domains = <&gcc HLOS1_VOTE_AGGRE
67 qcom,stream-id-range = <&apps_smmu 0x1
68 };
69 ...
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